As of November 6, 2026, Ampco-Pittsburgh Corporation is a publicly traded company (NYSE: AP). The largest holder reporting an active stake on Schedule 13D is The Louis Berkman Investment Company, at 15.39%. No bankruptcy or receivership appears in its SEC Form 8-K filings (Schedule 13D/A, November 26, 2025).
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Is Ampco-Pittsburgh Corporation a real, registered company?
- Ampco-Pittsburgh Corporation files with the SEC under CIK 6176 (its SEC filings).
- Its shares are listed under the ticker AP on NYSE (SEC company record).
- Incorporated in Pennsylvania; business address in Carnegie, Pennsylvania, as its SEC filings state.
- Court and bankruptcy records: see Before you sign or pay below.
Before you sign or pay
- Court and bankruptcy: No federal court case or bankruptcy filing found under Ampco-Pittsburgh Corporation in our court records and SEC 8-K records (as of 2026-11-06).
- Ownership: 5%+ holders are reported on Schedule 13D or 13G; the latest names Galloway Capital Partners, LLC (filed 2025-12-19).
Who are Ampco-Pittsburgh Corporation's owners and officers?
Ampco-Pittsburgh Corporation: incorporated in Pennsylvania; business address in Carnegie, Pennsylvania; industry Pumps & Pumping Equipment (Schedule 13G/A, 2026-08-14).
| Report | Holder | Share |
|---|---|---|
| Schedule 13G/A, 2026-08-14 | Ameriprise Financial, Inc. | 4.5% |
| Schedule 13G/A, 2026-01-22 | Rutabaga Capital Management LLC/Ma | 0% |
| Schedule 13D, 2025-12-19 | Galloway Capital Partners, LLC | 5.19% |
| Schedule 13D/A, 2025-11-26 | The Louis Berkman Investment Company | 15.39% |
| Schedule 13D/A, 2025-11-14 | Ancora Alternatives LLC | 4.2% |
| Schedule 13D/A, 2025-08-04 | Gamco Investors, Inc. Et Al | 12% |
Questions about who owns Ampco-Pittsburgh Corporation
Who owns Ampco-Pittsburgh Corporation?
On this page, 3 holders' latest ownership filings report 5% or more of Ampco-Pittsburgh Corporation: The Louis Berkman Investment Company (15.39%, Schedule 13D/A, filed 2025-11-26), Gamco Investors, Inc. Et Al (12%, Schedule 13D/A, filed 2025-08-04) and Galloway Capital Partners, LLC (5.19%, Schedule 13D, filed 2025-12-19).
Who are the largest shareholders of Ampco-Pittsburgh Corporation?
By the share each holder's latest filing reports, the largest holders of Ampco-Pittsburgh Corporation on this page are The Louis Berkman Investment Company (15.39%), Gamco Investors, Inc. Et Al (12%) and Galloway Capital Partners, LLC (5.19%).
When did The Louis Berkman Investment Company buy into Ampco-Pittsburgh Corporation?
The filings give report dates, not purchase dates. The earliest filing from The Louis Berkman Investment Company on this page is the Schedule 13D/A, filed 2025-11-26, reporting 15.39%. That earliest filing is itself an amendment, which updates an earlier report.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 6 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
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Which insiders own Ampco-Pittsburgh Corporation shares?
Directors, officers and holders of 10% or more report their shares on Forms 3, 4 and 5. Each line is the latest such report, largest holding first.
- Louis Berkman Investment CO, a 10% owner: 3,127,792 shares (15.1% of shares outstanding) (Form 4, 2025-11-26).
- , the chief executive and a director: 557,694 shares (2.7% of shares outstanding) (Form 4, 2026-05-20).
- , a director: 229,044 shares (1.1% of shares outstanding) (Form 4, 2026-05-18).
- , the president: 181,233 shares (0.88% of shares outstanding) (Form 4, 2026-06-26).
- , the chief financial officer and senior v.p.: 175,765.64 shares (0.85% of shares outstanding) (Form 4, 2025-05-16).
Shares outstanding: 20,658,621 as of 2026-08-06, from the company's latest SEC cover page.
How much has Ampco-Pittsburgh Corporation raised?
No fundraising or offering filing from Ampco-Pittsburgh Corporation is on file with us.
Keep reading
More on Ampco-Pittsburgh Corporation and the records around it.
Ampco-Pittsburgh Corporation elsewhere on the record
- 5%+ stake filings Aug 2026
Companies that share a holder
- Galloway Capital Partners, LLC also filed stake reports on 8 other companies: PodcastOne, Inc. (Oct 2026), WW INTERNATIONAL, INC. (May 2026), Global Crossing Airlines Group Inc. (Apr 2026)
- GAMCO INVESTORS, INC. ET AL also filed stake reports on 45 other companies: WESTWOOD HOLDINGS GROUP INC (Nov 2026), NATHANS FAMOUS, INC. (Oct 2026), BEASLEY BROADCAST GROUP INC (Oct 2026)
- Ameriprise Financial, Inc. also filed stake reports on 65 other companies: Universal Electronics Inc. (Sep 2026), America's Car-Mart, Inc. (Aug 2026), Babcock & Wilcox Enterprises, Inc. (Aug 2026)
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